| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser diffraction/scattering type particle size distribution- measuring device for easily determining whether the concentration of a group of particles to be measured is appropriate in a medium or not, easily evaluating the dispersion (agglomeration) state of a group of particles to be measured in the medium, and easily making constant measurement conditions when measuring the same type of sample for a plurality of times. SOLUTION: By providing the device with a storage means 10 for storing diffraction/scattering light intensity distribution data that are used as a standard or are referred to and a display means 11 for simultaneously displaying the diffraction/scattering light intensity distribution data being stored along with the measurement data of the diffraction scattering light intensity distribution of a group of particles P to be measured it is made possible to know the concentration information of a group of particles to be measured being essentially included in the diffraction/scattering light intensity distribution data and information on dispersion/flocculation state by comparing them with standard (reference) data.
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